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326 lines
7.6 KiB
ArmAsm
326 lines
7.6 KiB
ArmAsm
/* PLT trampolines. Sparc 64-bit version.
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Copyright (C) 2005-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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.text
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.align 32
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/* %g1: PLT offset loaded by PLT entry
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* %g4: callers PC, which is PLT0 + 24, therefore we
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* add (32 + 8) to get the address of PLT2 which
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* is where the magic cookie is stored
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*/
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.globl _dl_runtime_resolve_0
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.type _dl_runtime_resolve_0, @function
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_dl_runtime_resolve_0:
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cfi_startproc
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save %sp, -192, %sp
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cfi_def_cfa_register(%fp)
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cfi_window_save
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cfi_register(%o7, %i7)
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sethi %hi(1047552), %l2
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ldx [%g4 + 32 + 8], %o0
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sub %g1, %g4, %l0
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xor %l2, -1016, %l2
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sethi %hi(5120), %l3 /* 160 * 32 */
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add %l0, %l2, %l0
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sethi %hi(32768), %l4
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udivx %l0, %l3, %l3
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sllx %l3, 2, %l1
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add %l1, %l3, %l1
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sllx %l1, 10, %l2
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sub %l4, 4, %l4
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sllx %l1, 5, %l1
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sub %l0, %l2, %l0
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udivx %l0, 24, %l0
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add %l0, %l4, %l0
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add %l1, %l0, %l1
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add %l1, %l1, %l0
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add %l0, %l1, %l0
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call _dl_fixup
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sllx %l0, 3, %o1
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jmp %o0
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restore
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cfi_endproc
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.size _dl_runtime_resolve_0, .-_dl_runtime_resolve_0
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/* %g1: PLT offset loaded by PLT entry
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* %g4: callers PC, which is PLT1 + 24, therefore we
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* add 8 to get the address of PLT2 which
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* is where the magic cookie is stored
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*/
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.globl _dl_runtime_resolve_1
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.type _dl_runtime_resolve_1, @function
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_dl_runtime_resolve_1:
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cfi_startproc
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save %sp, -192, %sp
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cfi_def_cfa_register(%fp)
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cfi_window_save
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cfi_register(%o7, %i7)
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srlx %g1, 12, %o1
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ldx [%g4 + 8], %o0
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add %o1, %o1, %o3
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sub %o1, 96, %o1
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call _dl_fixup
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add %o1, %o3, %o1
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jmp %o0
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restore
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cfi_endproc
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.size _dl_runtime_resolve_1, .-_dl_runtime_resolve_1
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/* For the profiling cases we pass in our stack frame
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* as the base of the La_sparc64_regs, so it looks
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* like:
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* %l0 %sp
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* ...
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* %l7 %sp + (7 * 8)
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* %i0 %sp + (8 * 8)
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* ...
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* %i7 %sp + (15 * 8)
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* %f0 %sp + (16 * 8)
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* %f16 %sp + (31 * 8)
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* framesize %sp + (32 * 8)
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*/
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.globl _dl_profile_save_regs
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.type _dl_profile_save_regs, @function
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_dl_profile_save_regs:
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cfi_startproc
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stx %l0, [%sp + STACK_BIAS + ( 0 * 8)]
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stx %l1, [%sp + STACK_BIAS + ( 1 * 8)]
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stx %l2, [%sp + STACK_BIAS + ( 2 * 8)]
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stx %l3, [%sp + STACK_BIAS + ( 3 * 8)]
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stx %l4, [%sp + STACK_BIAS + ( 4 * 8)]
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stx %l5, [%sp + STACK_BIAS + ( 5 * 8)]
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stx %l6, [%sp + STACK_BIAS + ( 6 * 8)]
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stx %l7, [%sp + STACK_BIAS + ( 7 * 8)]
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stx %i0, [%sp + STACK_BIAS + ( 8 * 8)]
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stx %i1, [%sp + STACK_BIAS + ( 9 * 8)]
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stx %i2, [%sp + STACK_BIAS + (10 * 8)]
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stx %i3, [%sp + STACK_BIAS + (11 * 8)]
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stx %i4, [%sp + STACK_BIAS + (12 * 8)]
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stx %i5, [%sp + STACK_BIAS + (13 * 8)]
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stx %i6, [%sp + STACK_BIAS + (14 * 8)]
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stx %i7, [%sp + STACK_BIAS + (15 * 8)]
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std %f0, [%sp + STACK_BIAS + (16 * 8)]
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std %f2, [%sp + STACK_BIAS + (17 * 8)]
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std %f4, [%sp + STACK_BIAS + (18 * 8)]
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std %f6, [%sp + STACK_BIAS + (19 * 8)]
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std %f8, [%sp + STACK_BIAS + (20 * 8)]
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std %f10, [%sp + STACK_BIAS + (21 * 8)]
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std %f12, [%sp + STACK_BIAS + (22 * 8)]
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std %f14, [%sp + STACK_BIAS + (23 * 8)]
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std %f16, [%sp + STACK_BIAS + (24 * 8)]
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std %f18, [%sp + STACK_BIAS + (25 * 8)]
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std %f20, [%sp + STACK_BIAS + (26 * 8)]
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std %f22, [%sp + STACK_BIAS + (27 * 8)]
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std %f24, [%sp + STACK_BIAS + (28 * 8)]
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std %f26, [%sp + STACK_BIAS + (29 * 8)]
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std %f28, [%sp + STACK_BIAS + (30 * 8)]
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retl
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std %f30, [%sp + STACK_BIAS + (31 * 8)]
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cfi_endproc
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.size _dl_profile_save_regs, .-_dl_profile_save_regs
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/* If we are going to call pltexit, then we must replicate
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* the caller's stack frame.
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* %o0: PLT resolved function address
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*/
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.globl _dl_profile_invoke
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.type _dl_profile_invoke, @function
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_dl_profile_invoke:
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cfi_startproc
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add %l0, 7, %l0
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andn %l0, 7, %l0
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add %l0, (8 * 8), %g1
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sub %sp, %g1, %sp
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srlx %l0, 3, %l7
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mov %o0, %l1
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mov %i0, %o0
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mov %i1, %o1
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mov %i2, %o2
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mov %i3, %o3
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mov %i4, %o4
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mov %i5, %o5
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add %fp, STACK_BIAS, %l2
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brz %l0, 2f
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add %sp, STACK_BIAS, %l3
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1: ldx [%l2], %l4
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add %l2, 0x8, %l2
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subcc %l7, 1, %l7
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stx %l4, [%l3]
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bne,pt %xcc, 1b
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add %l3, 0x8, %l3
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2: jmpl %l1, %o7
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nop
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stx %o0, [%sp + STACK_BIAS + (16 * 8)]
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stx %o1, [%sp + STACK_BIAS + (17 * 8)]
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stx %o2, [%sp + STACK_BIAS + (18 * 8)]
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stx %o3, [%sp + STACK_BIAS + (19 * 8)]
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std %f0, [%sp + STACK_BIAS + (20 * 8)]
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std %f2, [%sp + STACK_BIAS + (21 * 8)]
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std %f4, [%sp + STACK_BIAS + (22 * 8)]
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std %f8, [%sp + STACK_BIAS + (23 * 8)]
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mov %l5, %o0
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mov %l6, %o1
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add %sp, STACK_BIAS + (24 * 8), %o2
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call _dl_call_pltexit
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add %sp, STACK_BIAS + (16 * 8), %o3
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ldx [%sp + STACK_BIAS + (16 * 8)], %i0
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ldx [%sp + STACK_BIAS + (17 * 8)], %i1
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ldx [%sp + STACK_BIAS + (18 * 8)], %i2
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ldx [%sp + STACK_BIAS + (19 * 8)], %i3
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ldd [%sp + STACK_BIAS + (20 * 8)], %f0
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ldd [%sp + STACK_BIAS + (21 * 8)], %f2
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ldd [%sp + STACK_BIAS + (22 * 8)], %f4
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ldd [%sp + STACK_BIAS + (23 * 8)], %f8
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jmpl %i7 + 8, %g0
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restore
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cfi_endproc
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.size _dl_profile_invoke, .-_dl_profile_invoke
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/* %g1: PLT offset loaded by PLT entry
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* %g4: callers PC, which is PLT0 + 24, therefore we
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* add (32 + 8) to get the address of PLT2 which
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* is where the magic cookie is stored
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*/
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.align 32
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.globl _dl_runtime_profile_0
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.type _dl_runtime_profile_0, @function
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_dl_runtime_profile_0:
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cfi_startproc
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save %sp, -336, %sp
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cfi_def_cfa_register(%fp)
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cfi_window_save
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cfi_register(%o7, %i7)
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sethi %hi(1047552), %l2
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ldx [%g4 + 32 + 8], %o0
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sub %g1, %g4, %l0
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xor %l2, -1016, %l2
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sethi %hi(5120), %l3 /* 160 * 32 */
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add %l0, %l2, %l0
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sethi %hi(32768), %l4
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udivx %l0, %l3, %l3
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sllx %l3, 2, %l1
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add %l1, %l3, %l1
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sllx %l1, 10, %l2
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sub %l4, 4, %l4
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sllx %l1, 5, %l1
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sub %l0, %l2, %l0
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udivx %l0, 24, %l0
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add %l0, %l4, %l0
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add %l1, %l0, %l1
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add %l1, %l1, %l0
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add %l0, %l1, %l0
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mov %i7, %o2
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sllx %l0, 3, %o1
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mov %o0, %l5
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mov %o1, %l6
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call _dl_profile_save_regs
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nop
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add %sp, STACK_BIAS, %o3
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call _dl_profile_fixup
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add %sp, (STACK_BIAS + (32 * 8)), %o4
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ldx [%sp + STACK_BIAS + (32 * 8)], %l0
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brlz,pt %l0, 1f
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nop
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call _dl_profile_invoke
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nop
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1: jmp %o0
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restore
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cfi_endproc
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.size _dl_runtime_profile_0, .-_dl_runtime_profile_0
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/* %g1: PLT offset loaded by PLT entry
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* %g4: callers PC, which is PLT1 + 24, therefore we
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* add 8 to get the address of PLT2 which
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* is where the magic cookie is stored
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*/
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.globl _dl_runtime_profile_1
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.type _dl_runtime_profile_1, @function
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_dl_runtime_profile_1:
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cfi_startproc
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save %sp, -336, %sp
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cfi_def_cfa_register(%fp)
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cfi_window_save
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cfi_register(%o7, %i7)
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srlx %g1, 12, %o1
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ldx [%g4 + 8], %o0
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add %o1, %o1, %o3
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sub %o1, 96, %o1
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mov %i7, %o2
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add %o1, %o3, %o1
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mov %o0, %l5
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mov %o1, %l6
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call _dl_profile_save_regs
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nop
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add %sp, STACK_BIAS, %o3
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call _dl_profile_fixup
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add %sp, (STACK_BIAS + (32 * 8)), %o4
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ldx [%sp + STACK_BIAS + (32 * 8)], %l0
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brlz,pt %l0, 1f
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nop
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call _dl_profile_invoke
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nop
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1: jmp %o0
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restore
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cfi_endproc
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.size _dl_runtime_resolve_1, .-_dl_runtime_resolve_1
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